When you want to pray, it should first be with awe, for this is the gate to enter before the Blessed One.⁴¹ 31b. You should say in your heart: “To Whom do I want to attach myself? To He Who Created the worlds with His words, and Who enlivens and sustains them!” You should meditate on His greatness and exaltedness. Then you can be in the supernal worlds. Tzava’as HaRivash, p. 7b

footnotes: ⁴¹ See Shabbat